:root {
  --ink: #14171F;
  --paper: #FFF8EC;
  --yellow: #FFC53D;
  --coral: #FF5A36;
  --teal: #0E7C5C;
  --blue: #2F5FFF;
  --border: var(--ink);
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 300;
  background: var(--yellow); color: var(--ink); font-weight: 700;
  border: 2.5px solid var(--ink); padding: 8px 14px; border-radius: 8px;
  text-decoration: none;
}
.skip-link:focus { top: 16px; }

:focus-visible {
  outline: 2.5px solid var(--blue);
  outline-offset: 3px;
}

/* Transição suave entre páginas (index <-> artigos), com fallback silencioso em navegadores sem suporte */
@view-transition { navigation: auto; }

::view-transition-old(root) { animation: page-out 0.22s ease-in forwards; }
::view-transition-new(root) { animation: page-in 0.32s ease-out forwards; }

@keyframes page-out { to { opacity: 0; transform: translateY(-10px) scale(0.99); } }
@keyframes page-in { from { opacity: 0; transform: translateY(10px) scale(0.99); } to { opacity: 1; transform: translateY(0) scale(1); } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: 'Big Shoulders Display', sans-serif; font-weight: 800; margin: 0; line-height: 1.02; letter-spacing: -0.01em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
a { color: inherit; }

.hard-shadow { box-shadow: 7px 7px 0 var(--ink); }
.card-border { border: 2.5px solid var(--ink); }

/* Progress bar */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 4px; width: 0%;
  background: var(--coral); z-index: 200; transition: width 0.1s linear;
}

/* Nav */
header {
  position: sticky; top: 0; z-index: 100;
  background: var(--paper);
  border-bottom: 2.5px solid var(--ink);
}
.nav {
  max-width: var(--max); margin: 0 auto; padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.mark {
  font-family: 'Big Shoulders Display', sans-serif; font-weight: 800; font-size: 20px;
  text-decoration: none; color: var(--ink); letter-spacing: -0.02em;
  background: var(--yellow); border: 2.5px solid var(--ink); border-radius: 8px;
  padding: 6px 14px; display: inline-block;
  transform: rotate(-4deg);
  transition: transform 0.2s ease;
}
.mark:hover { transform: rotate(-4deg) scale(1.06); }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-size: 14px; font-weight: 600; color: var(--ink); position: relative; }
.nav-links a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: -4px; height: 3px; background: var(--coral);
  transition: right 0.2s ease;
}
.nav-links a:hover::after { right: 0; }
.nav-links a.active { color: var(--coral); }
.nav-links a.active::after { right: 0; }

.nav-toggle {
  display: none; background: var(--paper); border: 2.5px solid var(--ink); border-radius: 8px;
  width: 40px; height: 36px; cursor: pointer; align-items: center; justify-content: center; gap: 4px; flex-direction: column;
}
.nav-toggle span { display: block; width: 20px; height: 2.5px; background: var(--ink); }
.mobile-menu {
  display: none; flex-direction: column; gap: 2px; padding: 0 32px 18px;
  background: var(--paper); border-bottom: 2.5px solid var(--ink);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  text-decoration: none; color: var(--ink); font-weight: 600; font-size: 15px; padding: 12px 0;
  border-bottom: 1.5px dashed var(--ink);
}
.mobile-menu a:last-child { border-bottom: none; }

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
}
.nav-cv {
  font-size: 13px; font-weight: 700; padding: 9px 18px; border-radius: 8px;
  text-decoration: none; color: var(--ink); background: var(--yellow);
  border: 2.5px solid var(--ink); box-shadow: 4px 4px 0 var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.nav-cv:hover { transform: translate(4px, 4px); box-shadow: 0 0 0 var(--ink); }
@media (max-width: 760px) { .nav-links { display: none; } }

/* Marquee */
.marquee {
  background: var(--ink); color: var(--paper); overflow: hidden; white-space: nowrap;
  border-bottom: 2.5px solid var(--ink); padding: 12px 0;
}
.marquee-track { display: inline-block; animation: scroll 22s linear infinite; }
.marquee-track span { font-family: 'JetBrains Mono', monospace; font-size: 14px; font-weight: 500; margin: 0 22px; }
.marquee-track span.hi { color: var(--yellow); }
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Hero */
.hero { background: var(--yellow); padding: 90px 0 80px; position: relative; overflow: hidden; border-bottom: 2.5px solid var(--ink); }
.spin-shape {
  position: absolute; top: 60px; right: 60px; width: 90px; height: 90px;
  background: var(--coral); border: 2.5px solid var(--ink);
  animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
  background: var(--paper); border: 2.5px solid var(--ink); padding: 7px 16px; border-radius: 100px;
  margin-bottom: 28px; box-shadow: 4px 4px 0 var(--ink);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }

.hero h1 { font-size: clamp(38px, 6.4vw, 68px); font-weight: 700; margin-bottom: 22px; }
.hero h1 .accent { color: var(--coral); }
.hero .lede { font-size: 19px; max-width: 540px; margin-bottom: 36px; font-weight: 500; }

.cta-row { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 700;
  text-decoration: none; padding: 14px 26px; border-radius: 8px; border: 2.5px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink); transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.ghost { background: var(--paper); color: var(--ink); }
.btn:hover { transform: translate(5px, 5px); box-shadow: 0 0 0 var(--ink); }

/* Sections */
section.body-section { padding: 90px 0; border-bottom: 2.5px solid var(--ink); scroll-margin-top: 120px; }
section.body-section:last-of-type { border-bottom: none; }
.dark { background: var(--ink); color: var(--paper); }

.section-head { margin-bottom: 48px; }
.eyebrow {
  display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 13px; font-weight: 500;
  color: var(--coral); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.04em;
}
.dark .eyebrow { color: var(--yellow); }
.section-head h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 700; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; align-items: start; }
.about-grid p { font-size: 16.5px; margin: 0 0 16px; }

.stack-card { background: var(--paper); border: 2.5px solid var(--ink); border-radius: 14px; padding: 26px; transform: rotate(-1deg); }
.stack-group { margin-bottom: 18px; }
.stack-group:last-child { margin-bottom: 0; }
.stack-label { font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 500; margin-bottom: 10px; text-transform: uppercase; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { font-size: 13px; font-weight: 700; padding: 6px 14px; border-radius: 100px; border: 2px solid var(--ink); color: var(--ink); }
.tag.c1 { background: var(--yellow); }
.tag.c2 { background: #B9E6D3; }
.tag.c3 { background: #FFC9BC; }
.tag.c4 { background: #C9D6FF; }

@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; } }

/* Timeline */
.timeline-card { background: var(--paper); color: var(--ink); border: 2.5px solid var(--ink); border-radius: 16px; padding: 40px; }
.timeline-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.timeline-head h3 { font-size: 21px; font-weight: 700; }
.timeline-head .company { font-size: 14px; font-weight: 600; color: var(--coral); }
.timeline-head .trajectory {
  margin: 10px 0 0; font-size: 13px; font-weight: 500; color: var(--ink); opacity: 0.72;
}
.timeline-head .period {
  font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 500; background: var(--yellow);
  border: 2px solid var(--ink); padding: 5px 12px; border-radius: 100px; color: var(--ink);
}
.timeline-list { list-style: none; margin: 0; padding: 0; }
.timeline-list li {
  position: relative; padding-left: 28px; margin-bottom: 18px;
  opacity: 0; transform: translateX(-10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.timeline-list li:last-child { margin-bottom: 0; }
.timeline-list li::before { content: '▸'; position: absolute; left: 0; top: 0; color: var(--coral); font-weight: 700; }
.timeline-list strong { font-weight: 700; }
.counter { font-variant-numeric: tabular-nums; }

.timeline-card.in .timeline-list li { opacity: 1; transform: translateX(0); }
.timeline-list li:nth-child(1) { transition-delay: 0.05s; }
.timeline-list li:nth-child(2) { transition-delay: 0.12s; }
.timeline-list li:nth-child(3) { transition-delay: 0.19s; }
.timeline-list li:nth-child(4) { transition-delay: 0.26s; }
.timeline-list li:nth-child(5) { transition-delay: 0.33s; }
.timeline-list li:nth-child(6) { transition-delay: 0.4s; }
.timeline-list li:nth-child(7) { transition-delay: 0.47s; }

/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.project-card {
  display: block; background: var(--paper); color: inherit; text-decoration: none;
  border-radius: 14px; padding: 30px; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.project-card:nth-child(1) { border-top: 6px solid var(--coral); }
.project-card:nth-child(2) { border-top: 6px solid var(--teal); }
.project-card:nth-child(3) { border-top: 6px solid var(--blue); }
.project-card:hover { transform: translate(-3px, -3px) rotate(-1deg); box-shadow: 8px 8px 0 var(--ink); }
.project-card:nth-child(2):hover { transform: translate(-3px, -3px) rotate(1deg); }
.project-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.project-card p { font-size: 15px; margin: 0 0 18px; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.project-tags span { font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 500; border: 2px solid var(--ink); padding: 4px 10px; border-radius: 100px; }
.project-link { font-size: 13px; font-weight: 700; border-bottom: 2px solid var(--ink); padding-bottom: 2px; }
.project-card:hover .project-link { color: var(--coral); border-color: var(--coral); }

@media (max-width: 760px) { .projects-grid { grid-template-columns: 1fr; } }

/* Articles */
.articles-empty { background: var(--paper); border: 2.5px dashed var(--ink); border-radius: 14px; padding: 50px 32px; text-align: center; }
.articles-empty .big { font-family: 'Big Shoulders Display', sans-serif; font-weight: 800; font-size: 22px; margin-bottom: 8px; }
.articles-empty p { margin: 0 0 4px; }

.article-card {
  display: block; background: var(--paper); color: var(--ink); border-radius: 12px; border: 2.5px solid var(--ink);
  padding: 24px 28px; margin-bottom: 14px; text-decoration: none; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.article-card:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 var(--ink); }
.article-card .date { font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 500; color: var(--coral); margin-bottom: 8px; display: block; }
.article-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.article-card p { font-size: 14px; margin: 0; }

/* Contact */
.contact-block {
  position: relative; overflow: hidden;
  background: var(--teal); color: var(--paper); border-radius: 20px; padding: 60px;
  text-align: center; border: 2.5px solid var(--ink);
}
.contact-copy { position: relative; z-index: 1; }
.contact-block h2 { font-size: clamp(26px, 4vw, 38px); margin-bottom: 16px; }
.contact-block p { max-width: 480px; margin: 0 auto 32px; font-size: 16.5px; }

.contact-art { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.stamp {
  position: absolute; border: 2.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink);
}
.stamp-sq {
  top: 22px; left: 28px; width: 52px; height: 52px; background: var(--yellow);
  animation: stamp-spin 16s linear infinite;
}
.stamp-dot {
  bottom: 28px; right: 36px; width: 44px; height: 44px; border-radius: 50%; background: var(--coral);
  animation: stamp-float 7s ease-in-out infinite;
}
.stamp-bar {
  top: 36px; right: 56px; width: 72px; height: 16px; background: var(--blue); transform: rotate(18deg);
  animation: stamp-wiggle 8s ease-in-out infinite;
}
.stamp-bubble {
  bottom: 32px; left: 40px; width: 70px; height: 46px; background: var(--paper); border-radius: 12px;
  animation: stamp-float 9s ease-in-out infinite reverse;
}
.stamp-bubble::after {
  content: ''; position: absolute; left: 14px; bottom: -9px;
  width: 16px; height: 16px; background: var(--paper); border-right: 2.5px solid var(--ink);
  border-bottom: 2.5px solid var(--ink); transform: rotate(45deg);
}
.stamp-chip {
  top: 50%; left: 18px; width: 22px; height: 22px; background: var(--yellow); transform: rotate(45deg);
  animation: stamp-spin 22s linear infinite reverse;
}

@keyframes stamp-spin { to { transform: rotate(360deg); } }
@keyframes stamp-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes stamp-wiggle {
  0%, 100% { transform: rotate(18deg); }
  50% { transform: rotate(-8deg); }
}

@media (max-width: 760px) {
  .contact-block { padding: 48px 24px; }
  .stamp-bar, .stamp-chip { display: none; }
  .stamp-sq { width: 36px; height: 36px; top: 14px; left: 14px; }
  .stamp-dot { width: 32px; height: 32px; bottom: 14px; right: 14px; }
  .stamp-bubble { width: 52px; height: 36px; bottom: 16px; left: 16px; }
}
.contact-links { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.contact-links a {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 700; text-decoration: none;
  color: var(--ink); background: var(--paper); border: 2.5px solid var(--ink); padding: 12px 22px; border-radius: 100px;
  box-shadow: 4px 4px 0 var(--ink); transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.contact-links a:hover { transform: translate(4px, 4px); box-shadow: 0 0 0 var(--ink); }

footer { background: var(--ink); color: var(--paper); padding: 36px 0 0; }

.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; flex-wrap: wrap; padding-bottom: 26px; }

.footer-brand .mark { margin-bottom: 8px; font-size: 15px; padding: 4px 12px; }
.footer-brand p { font-size: 13px; color: rgba(255,248,236,0.6); max-width: 240px; margin: 0; }

.footer-links { display: flex; gap: 44px; flex-wrap: wrap; }
.footer-col .stack-label { color: rgba(255,248,236,0.45); margin-bottom: 8px; font-size: 11px; }
.footer-col { display: flex; flex-direction: column; }
.footer-col a {
  text-decoration: none; color: var(--paper); font-size: 13px; font-weight: 600;
  margin-bottom: 6px; width: fit-content; position: relative;
}
.footer-col a:last-child { margin-bottom: 0; }
.footer-col a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: -3px; height: 2px; background: var(--yellow);
  transition: right 0.2s ease;
}
.footer-col a:hover::after { right: 0; }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  border-top: 2.5px solid rgba(255,248,236,0.15); padding: 14px 0; font-size: 12px; font-weight: 500;
  color: rgba(255,248,236,0.55);
}
.back-top { text-decoration: none; color: var(--paper); font-weight: 600; }
.back-top:hover { color: var(--yellow); }

/* Article page */
.article-hero { background: var(--yellow); padding: 60px 0 50px; border-bottom: 2.5px solid var(--ink); }
.article-back {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink);
  font-weight: 600; font-size: 14px; margin-bottom: 24px; border-bottom: 2px solid var(--ink); padding-bottom: 2px;
}
.article-hero .eyebrow { color: var(--ink); }
.article-hero h1 { font-size: clamp(30px, 5vw, 48px); font-weight: 700; margin-bottom: 16px; max-width: 780px; }
.article-meta { display: flex; gap: 18px; flex-wrap: wrap; font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--ink); opacity: 0.75; }

.article-body { max-width: 720px; margin: 0 auto; padding: 64px 32px 100px; }
.article-body p { font-size: 17px; color: var(--text-body, var(--ink)); margin: 0 0 22px; }
.article-body h2 { font-size: 26px; font-weight: 700; margin: 48px 0 18px; }
.article-body h3 { font-size: 20px; font-weight: 700; margin: 34px 0 14px; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-left: 22px; }
.article-body li { font-size: 16.5px; margin-bottom: 10px; }
.article-body strong { font-weight: 700; }
.article-body code {
  font-family: 'JetBrains Mono', monospace; font-size: 14px; background: var(--gray-bg, #F5F7FC);
  border: 1.5px solid var(--border); padding: 2px 6px; border-radius: 5px;
}
.article-body pre {
  background: var(--ink); color: var(--paper); border-radius: 12px; padding: 22px 24px;
  overflow-x: auto; margin: 0 0 26px; box-shadow: 6px 6px 0 var(--border);
}
.article-body pre code { background: none; border: none; padding: 0; color: inherit; font-size: 13.5px; line-height: 1.6; }

.callout {
  background: var(--paper); border: 2.5px solid var(--ink); border-radius: 14px; padding: 22px 26px;
  margin: 0 0 30px; box-shadow: 6px 6px 0 var(--ink);
}
.callout .label { font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 600; text-transform: uppercase; color: var(--coral); margin-bottom: 8px; display: block; }
.callout p { margin: 0; font-size: 15.5px; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; padding-top: 30px; border-top: 2px dashed var(--border); }
.article-tags span { font-family: 'JetBrains Mono', monospace; font-size: 12px; border: 2px solid var(--ink); padding: 4px 12px; border-radius: 100px; }

/* Acessibilidade: respeita quem prefere menos movimento no sistema */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
  .marquee-track, .spin-shape, .stamp { animation: none !important; }
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) {
    animation: none !important;
  }
}